Finding the Fourth Proportional to 53,780,637.12, 74,217,279.36 and 29,334,351.12
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Solution
The fourth proportional to 53,780,637.12, 74,217,279.36 and 29,334,351.12 is: 40,481,404.62
Step by Step Solution
- Step 1: Write the proportion equation
53,780,637.12 : 74,217,279.36 = 29,334,351.12 : x - Step 2: Convert to fraction form
53,780,637.12/74,217,279.36 = 29,334,351.12/x - Step 3: Cross multiply
53,780,637.12x = 74,217,279.36 × 29,334,351.12 - Step 4: Simplify right side
53,780,637.12x = 2,177,115,731,917,369 - Step 5: Solve for x
x = 2,177,115,731,917,369/53,780,637.12 - Step 6: Final answer
x = 40,481,404.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.